Finding the Fourth Proportional to 279,747.49, 419,212.99 and 139,312.93
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Solution
The fourth proportional to 279,747.49, 419,212.99 and 139,312.93 is: 208,766.09
Step by Step Solution
- Step 1: Write the proportion equation
279,747.49 : 419,212.99 = 139,312.93 : x - Step 2: Convert to fraction form
279,747.49/419,212.99 = 139,312.93/x - Step 3: Cross multiply
279,747.49x = 419,212.99 × 139,312.93 - Step 4: Simplify right side
279,747.49x = 58,401,789,930.96 - Step 5: Solve for x
x = 58,401,789,930.96/279,747.49 - Step 6: Final answer
x = 208,766.09
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.